Loading... Please wait...

The store IS OPEN FOR WALK-IN shopping Monday - Friday 8am - 5pm and by appointment Saturdays. Bring your fly boxes and we'll help you fill in the holes in the hatch where you will be fishing!*close



Top Sellers

Shop Gift Certificates

Biologist Selected.
Fish Approved.

Give the gift of success on the fly to your family and fishing buddies with an Ascent Fly Fishing Gift Certificate.


3 product reviews Write A Review
0.01 LBS
Calculated at checkout
Size chart

Product Description

No family of flies better covers the mayfly emerger life stage than the RSII!  Trout eagerly anticipate the time when the mayfly nymphs break cover from the bottom of the lake or river and make their way towards the surface.  What happens next can best be compared to a bunch of tourists trying to run with the bulls in Spain!  It is a massacre!

The traditional RS2 is tied with a CDC or Antron wing, a thin body, and a light hackle tail, and is the standard after which most mayfly emerger patterns are tied.  This pattern is among our top 5 producers and can be fished all four seasons and in almost any water.  

Dry/Wet:  Wet

Fly Category: Generalist Pattern

Family: Mayflies

Species: NA

Life Stage: Nymph, Emerger


Custom Tab

Returns Policy

We pride ourselves in the production of quality flies and fishing gear, and want our customers to be 100% satisfied with every purchase they make from Ascent Fly Fishing. That's why we are happy to offer a 30 day return policy on all items that are unused, are in brand new condition, and come back with their original tags and packaging.  Items that are returned beyond 30 days will be eligible for store credit, which will be issued in the form of a gift certificate.  Items returned without their original packaging and tags, or items that have been used are not eligible for return.

This policy applies to all products we sell with the exception of terminal tackle (leaders, tippets, weights, floatants, indicators, etc.), digital downloads, classes, sale items and Biologist Crafted Fly Selections.

A 10% restocking fee will apply.


The Client will be responsible for paying the shipping costs to return the item. Shipping costs are nonrefundable.


Product Reviews

Write Review

  1. A Colorado classic

    Posted by Unknown on 26th May 2021

    Targeted some sipping trout, tied this as a trailer behind my Amy’s Ant and immediately a sizable brown took it and I landed it on the first cast. So it obviously works and works well.

  2. RSII

    Posted by Unknown on 7th May 2020

    Used all day 5/6 at Grey Reef in Casper, landed 20+ on this fly bought from Ascent fly fishing. Tried other flies that same day, ended up putting 2 grey RSII flies on and was not disappointed.

  3. Great fly

    Posted by TERRY WEST on 13th Dec 2019

    I am only giving this 4 stars because I am unable to get out and fish. The fly looks and feels great. Having been a tyer before old age hit, I can see that this is tied very good.

Find Similar Products by Category

Related Products

Back to Top